<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1">
		<title>Title</title>
		<style type="text/css">
			div {
				width: 200px;
				height: 200px;
				background-color: pink;
			}
		</style>
	</head>
	<body>
		<div></div>
		<p>1234</p>
		
		<script src="jquery-1.12.4.js" type="text/javascript" charset="utf-8"></script>
		<script src="jquery.bgColor.js" type="text/javascript" charset="utf-8"></script>
		<script type="text/javascript">
			$(function(){
				$("div").bgColor("red").width(400);
			});
		</script>
	</body>
</html>